Hoisting apparatus



(ModeL) 3 Sheets-Sheet '1.

G. P. JENNINGS. HOISTING APPARATUS.

No. 508,171. Patented Nov. 7,1893.

Fi z-.2

urn-N25525: IN YENTUE.

(ModeL) 3 Sheets-Sheet 2.

G P JENNINGS HOISTING APPARATUS.-

No. 508,171. Patented Nov. 7, 1893.

IN .ENZ'UE:

WITNEE'EE'E.

UNITED STATES PATENT OFFICE.

v GEORGE F. JENNINGS, OF FALL RIVER, MASSACHUSETTS.

H OISTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 508,171, dated November '7, 1893.

Application filed July .5. 1893.

To all whom it may concern:

Be it known that I, GEORGE F. JENNINGS, of Fall River, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Hoisting Apparatus; and I hereby declare that the following is afull, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this speci- 1o fication.

This invention has reference to improvements in hoisting-devices which are particularly adapted-for use in elevating coal, sand and similar substances from vessels.

The object of the invention is to so construct a hoistingapparatus, of the nature herein described, that it may be readily adj usted above the hatch of the vessel.

Another object of the. invention is to sim- 2o plify the construction and operation of the port, whereby the upper end of the trolleycable may be shifted to correspond with the location of the booms.

The invention also consists in the peculiar combination with the pivoted shifting-booms and cables, of a trolley-carriage, tackle for elevating a bucket, and a down-fall for de-- pressing the ends of the boom and bringing a strain on the trolley-cable.

The invention also consists in such other novel features of constructionand combinaa plan view of the same.

tion of parts as will hereinafter be more fully described and pointed out in the claims.

Figure 1 represents a side elevation of the improved device, partly in section. Fig. 2

' 5 represents a plan view of the booms and the rail in which their supporting shoe is traversable. Fig. 3 represents an enlarged side view of part of one of the booms, the shoe and its rail being shown in section. Fig. 4 represents Fig. 5 represents a sectional view of the header or cross-beam mounted between vertical standards and one Serial No. 479,663. (Morleh) 'means of traversably supporting the trolleystay. Fig. 6 represents a sectional view of the cross bar and a portion of one of the booms, showing the manner in which the cross bar is pivoted to the ends of the booms. Fig.

7 represents a perspective view of portions of the hoisting-apparatus to show the horizontally-supported rail with the shoe movably supported therein and the booms universally pivoted to the shoe, the outer ends of the boomsbeing pivoted to the cross bar.

Similar numbers of reference designate corresponding parts throughout.

The hoisting-apparatus herein described is designed to be erected on a frame Work located near the edge of a wharf.

In' the drawings 5 and 6 indicate a pair of vertical standards,iof which any number can be used, depending on thelength of the wharf 7 or upon the desired length of the staging 8, the uprights being suitably braced to each other and to the next pair if necessary. The staging 8 is supported on cross timbers 9 at any desired height and is adapted to receive a railway on which cars, or wagons, may run. Above the rear portion of the frame-Work is built a horse formed of two uprights, similar to that marked 10, and a header or crossbeam 11 secured at each end to one of the uprights, these uprights being braced in any suitable manner. Surrounding this header 11 is a strap 12 having an eye-bolt 13 and readily traversable along the header.

Secured across the face of the frame-Work is the horizontal boom-rail14 and in a groove in this rail is a movable shoe, or block, 15. To this shoe is firmly secured the castings 16 having the ears, or studs, 17 between which the swivel-blocks 18 are pivoted. Each of these blocks has an extension 19 to which the metallic-plates 20-20 are pivoted by a bolt passing through the plates and through a perforation in the extension. The booms 21 21 are securely fastened at their inner ends, each between a pair of the plates 20-20, while at their outer ends theyare connected by the cross-bar 22 pivoted to the booms, the booms thus being adapted to be swung to the right or left so as to rest against the frame-work, or the outer ends to be elevated or depressed at will, while the shoe 15 may be shifted along the rail, as desired, to bring the boom-frame over the hatch of a vessel; it is obvious that front plates 14 may be secured to the P511114 to retain the shoe 15 within the groove of the rail. The trolley-stay 23 is secured at its lower end to the center of the cross-bar 22 and at its upper end in the eye-bolt 13 of the movable-strap 12. In this eye-bolt may also be secured a link 24 carrying a tackle-block 25 to receive the hoisting-tackle.

Midway of the length of the booms are secured the pulley-blocks 26 and similar blocks 27 are secured to portions of the frame-work below the level of the booms. Through these blocks work the down-falls 28 adapted to depress the outer ends of the booms and to bring a strain on the trolley-stay.

The trolley-carriage consists of side-frames between which are journaled the wheels 29; and 30 resting on the trolley-stay, and the pulley 31 depending below the stay. Atthe lowest portion of the carriage-frame is secured one end of the hoisting-tackle 32 which, after passing under the bucket-pulley 33, passes over the carriage-pulley 31, then over the head-pulley 25 and is then carried to any usual hoisting mechanism, the bucket 34: being secured to a depending portion of the pulley 33.

When the bucket and carriage are in the position shown in dotted lines in Fig. 1, and the tackle 32 is slackened, the weight of the bucket will tend to carry the carriage downward along the stay 23 until the movement of the carriage is arrested by the cross-bar 22 or the stop 35. The further slackening of the tackle will now allow the bucket to descend. In hoisting, the bucket will first be drawn upward until it reaches the position shown in solid lines in Fig. 1, and the carriage will then move upward on the trolley-stay.

Having thus described my invention, I 5

j hand.

claim as new and desire to secure by Letters Patent- 1. In a hoisting-apparatus, in combination,

a horizontally-supported rail, a shoe traversj ably supported by the raihbooms universally pivoted to the shoe, a cross-bar pivoted to the outer ends of the booms, and a stay for supporting the same.

2. In a hoisting-apparatus, the combination with a rail, a shoe traversably supported by the rail, booms pivoted to the shoe and acrossbar pivoted to the outer ends of the booms, of a longitudinal-rail supported above and to the rear of the boom-rail, a traversable support mounted thereon, a trolley-stay secured to such support and to the cross-bar of the booms and a trolley-carriage carried by the stay.

3. The combination with the grooved-rail 14 secured to a frame-Work, the shoe 15 movable in the grooved rail, castings 16 having ears 17 secured to. the shoe, the swivel-blocks having extensions 19: pivoted between the ears, the plates 20 pivoted to these extens ons, the booms 21 each secured between a pair of the plates 20, the cross-bar 22 pivoted to the outer ends of the booms, and a down-fall for depressing the ends of the. booms, of the supports 10, the rail 11 supported between them, the movable-strap 12 having the eye-bolt, 13. mounted on the rail, the pulley 25 supported by the eye-bolt, the trolley-stay 23 secured to the eye-bolt, and to the cross-bar 22, a trolley-carriage movable on the stay, tackle for operating the carriage, and a bucket adapted to be elevated and lowered by the tackle.

4. The combination, with the grooved rail 14, secured to a frame work and extending horizontally the shoe 15 movable in the groove of the rail, the booms 21 each of which isuniversally pivoted to the shoe, and the cross,- j' bar 22, pivoted to the outer ends of the booms, of a stay secured to the cross-bar for supporting the outer ends of the booms and adapted i to serve as a cable-way, as described.

In witness whereof I have hereunto set. my

GEORGE, F. JENNINGS.

Witnesses:

HENRY J. MILLER, M. F. BLIGH. 

